Step-by-step explanation:
The definition of empirical formula is: "a chemical formula showing the simplest ratio of elements in a compound".
To get the simplest ratio between the elements we will have to cancel the subscripts in the formula.
a) B₂H₆:
In this compound we can divide the subscripts for both elements by two.
So the empirical formula for B₂H₆ is BH₃.
b) C₆H₁₀F₈:
We can also divide the 3 subscripts by 2 and get the empirical formula. It is C₃H₅F₄.
b) C₆H₁₂O₆:
Since 6, 12 and 6 are divisible by 2 and 3, we can divide the subscripts by them to get the simplest ratio of the elements.
The empirical formula is CH₂O.
Answer:
a) BH₃ BH3
b) C₃H₅F₄ C3H5F4
c) CH₂O CH2O